TRR110 Workshop - Amplitudes for Three-Body Final States

Europe/Berlin
MIAPP

MIAPP

Campus of Max-Planck Society Ahornstr 85748 Garching Germany
Patricia Magalhães (TU Munich) , Bastian Kubis (Universität Bonn) , Christoph Hanhart (IAS, Forschungszentrum Juelich, Germany) , Norbert Kaiser (TU Munich) , Stephan Paul (TU Munich)
Description

Decays of mesons and tau leptons into three hadrons serve as a tool in studying both
spectroscopy and the weak dynamics of heavy flavour decays. State of the art analyses of
experimental data are now able to determine the underlying decay amplitudes with less and less
model dependence, often projected onto the JPC of a 2-body subsystem. To explore the wealth
of new information and to extract the sought-for physics observables, however, requires a new
quality of mathematical description of such amplitudes. These are governed by the strong
interaction among these hadrons. While for almost 50 years such descriptions relied on the
idealized isobar picture (including S-wave scattering of two hadrons), high precision data
require a more refined understanding covering the full spectral distribution of these complex
amplitudes. Final state interaction, triangular diagrams, chiral dynamics, Regge phenomenology
and dispersion relations are just some of the ingredients used for this purpose.

The TRR110 workshop will joint theorists and experimentalists aiming to address above topics.

 

Registration
Register your self in the TRR110 Workshop
Participants
  • Aleksei Garmash
  • Alexander Austregesilo
  • Bachir Moussallam
  • Bastian Kubis
  • Bertram Kopf
  • Boris Grube
  • Bruno El-Bennich
  • Christoph Hanhart
  • Daniel Greenwald
  • Danny van Dyk
  • Dmitrii Riabchikov
  • Emilie Passemar
  • Fabian Krinner
  • Feng-Kun Guo
  • Florian Kaspar
  • Ikaros Bigi
  • Jacobo Ruiz de Elvira
  • Jan Friedrich
  • Jeremy Dalseno
  • Johann Kuehn
  • Jonas Rademacker
  • Keri Vos
  • Malte Albrecht
  • Malwin Niehus
  • Manoel Robilotta
  • Martin Beneke
  • Martin Faessler
  • Mathias Wagner
  • Menglin Du
  • Miguel Albaladejo
  • Mikhail Mikhasenko
  • Norbert Kaiser
  • Patricia Magalhaes
  • Sebastian Uhl
  • Stefan Ropertz
  • Stefan Wallner
  • Stephan Paul
  • Suh-Urk Chung
  • Thomas Latham
  • Tobias Isken
  • Veronika Chobanova
  • Wolfgang Duennweber
  • Wolfgang Ochs
    • 13:00 13:20
      Welcome & Opening: scope of the workshop
    • 13:20 14:40
      Amplitude analysis methods

      30 min +10 min discussion

      Convener: Fabian Krinner, Jonas Rademacker
      • 13:20
        LHCb owerview on FSI of many-body decays 40m
        Speaker: Jonas Rademacker
      • 14:00
        Model-independent analysis in COMPASS 40m
        Speaker: Fabian Krinner
    • 14:40 15:10
      coffee time + discussion 30m
    • 15:10 16:30
      Heavy meson pure hadronic decays

      30min +10min

      Convener: Jeremy Dalseno, Keri Vos
      • 15:10
        CP Violation in Multi-body B-decays from QCD Factorization 40m
        Speaker: Keri Vos
      • 15:50
        B → 3h amplitude analysis in LHCb 40m
        Speaker: Jeremy Dalseno
    • 16:30 17:10
      Future experimental challenges
      Convener: Alexander Austregesilo
      • 16:30
        Strategy and foreseeable issues in GlueX 3-body analysis 40m
        Speaker: Alexander Austregesilo
    • 17:10 19:00
      discussion: what experimentalists can use?

      time for free discussion

    • 20:00 22:00
      World Cup semi-finals
    • 09:00 10:20
      Meson-meson scattering: new developments and challenges
      Convener: Jacobo Ruiz de Elvira, Miguel Albaladejo
      • 09:00
        Dispersive analysis for π 40m
        Speaker: Jacobo Ruiz de Elvira
      • 09:40
        Khuri-Treiman for ππ scattering 40m
        Speaker: Miguel Albaladejo
    • 10:20 10:50
      coffee time 30m
    • 10:50 12:10
      Three-body technics on hadronic decays
      Convener: Manoel Robilotta, M. Mikhasenko
      • 10:50
        KK scattering predictions from D+ → K-K+K+ decay amplitude 40m
        Speaker: Manoel Robilotta
      • 11:30
        3π production in COMPASS 40m
        Speaker: M. Mikhasenko
    • 12:10 14:00
      lunch + discussion 1h 50m
    • 14:00 15:20
      Three-body technics on hadronic decays
      Convener: Tobias Isken, Bachir Moussallam
      • 14:00
        Khuri--Treiman for η' decays and D+ → K-π+π+ 40m
        Speaker: Tobias Isken
      • 14:40
        Isospin and chiral symmetries in D → K ππ amplitudes in the Khuri-Treiman formalism 40m
        Speaker: Bachir Moussallam
    • 15:20 15:50
      coffee time 30m
    • 15:50 16:30
      Three-body technics on hadronic decays
      Convener: Feng-Kun Guo
      • 15:50
        What we learn about the charmed meson spectrum from B → Dππ 40m
        Speaker: Feng-Kun Guo
    • 16:30 18:30
      discussion: How to improve ANA?

      time for free discussion

    • 19:00 20:30
      Dinner 1h 30m t.b.a.

      t.b.a.

    • 09:00 10:20
      Tau decays
      Convener: Alexey Garmash, Emille Passamar
      • 09:00
        Belle results in three-body tau decays 40m
        Speaker: Alexey Garmash
      • 09:40
        Hadronic tau decays 40m
        Speaker: Emilie Passemar
    • 10:20 10:50
      coffee time 30m
    • 10:50 11:30
      Amplitude analysis methods

      30 min +10 min discussion

      Convener: Bertram Kopf
      • 10:50
        Coupled Channel Analysis with e+e- and Scattering data 40m
        Speaker: Bertram Kopf
    • 11:30 12:10
      Meson-meson scattering: new developments and challenges
      Convener: Stefan Ropertz
      • 11:30
        Extensions of pion form factors beyond 1 GeV 40m
        Speaker: Stefan Ropertz
    • 12:10 12:50
      Heavy meson pure hadronic decays

      30min +10min

      Convener: Bruno El-Bennich
      • 12:10
        Parametrisations of hadronic three-body decay amplitudes 40m
        Speaker: Bruno El-Bennich
    • 12:50 13:40
      onsite lunch + discussion 50m
    • 13:40 15:10
      discussion: Interfacing data analysis and amplitude calculations

      time for free discussion

      Convener: Dr. Boris Grube and Bastian Kubis
      • 13:40
        Closing section 10m
    • 15:10 15:20
      Closing remarks
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